https://nckforum.com/forum/index.php?threads/how-to-ask-quickbooks-file-doctor-service-support-by-phone-a-full-guide.6830/ 
https://nckforum.com/forum/index.php?threads/quickbooks-file-doctor-service-phone-support-full-guide-100.6836/ 
https://nckforum.com/forum/index.php?threads/reaching-file-doctor-by-phone-step-by-step-explanation.6843/ 
https://quickbooks12.tawk.help/article/lufthansa-airlines-customer-service-detailed-guide-phone-email-and-customer-chat-options 
https://quickbooks12.tawk.help/article/live-helphow-do-i-call-to-human-intuit-quickbooks-file-doctor 
https://quickbooks12.tawk.help/article/quickbooks-file-doctor-helpline-everything-you-need-to-know 
https://quickbooks12.tawk.help/article/quickbooks-tool-hub-fix-quickbooks-errors-in-minutes 
https://quickbooks12.tawk.help/article/how-to-download-install-quickbooks-tool-hub-%E2%80%93-step-by-step-guide 
https://quickbooks12.tawk.help/article/quickbooks-tool-hub-the-all-in-one-solution-for-quickbooks-issues 
https://quickbooks12.tawk.help/article/fix-company-file-network-installation-errors-with-quickbooks-tool-hub 
https://quickbooks12.tawk.help/article/quickbooks-database-server-manager-essential-for-multi-user-access 
https://quickbooks12.tawk.help/article/how-to-download-install-set-up-quickbooks-database-server-manager 
https://quickbooks12.tawk.help/article/quickbooks-database-server-manager-fixing-network-hosting-issues  
https://pantip.com/topic/43363621